Slide holder



.' W. T. BIRDSALL I SLIDE HOLDER Filed April 16, 192.6 @7 1.

ill

f atented Aug. 7, 19.28.

lllfl'lJFlEtElU '1. BIRDSAIJIJ, OF MONTGLAFR,

new master, .essrenon TO ra ens-non new LIGHT PKCTURE IEGR'EEII COJEUPOHEL'FION, F YORK, N. "51., A CORPORATION OF DELA'WARE.

sLInn ironnnn.

Application filed A ril is, 1926. Serial No. 102,596.

This lllVtEiltlO'll relates to a novel and im proved slide holder, and for its object to provide a device of that character which may be readily and elliciently made.

fl further object of the invention lste provide aslide holder having secured thereto a Slflf'lllg which shallliold the slide holder in the carrier in the correct position, saring being secured to the holder in a novel and improved manner.

.l.he invention willbo best understood by reference to the following description when taken in connection with the accompanying drawing in which.

Figure 1 is view of the blank from which the slide holder is made.

Figure 2 is a plan view of the finished slide holder,

Figure 3 is an end. view of the slide holder taken from the right of Figure 2.

Figure at is a side elevation of the holder as viewed. from the top of Figure 2.

Figure is a partial section on the line 5-.5 of Figure 3.

Figure 6 is a perspective view of the spring employed n my slide holder.

lteferring now to the drawings in deta l, 1 preferably make my slide holder from one piece of sheet metal, ".idicated at 1 1n F1gare 1. This sheet is cut into the form shown in Figure 1 which comprises two plates 2 and 3 having the apertures t and 5 respectively. the lines (5 and, 7, so that the plates 2 and 3 are brought substantially parallel to each other, and so that the apertures 1 and 5 will register. The lines 6 and? are spaced apart a sufficient distance so that, when theblanlt is folded, there will be formed a side 8 of one piece with the plates and joining them together. This side 8 is sulliciently wide so that the plates 2 and 8 are spaced apart the proper distance to receive a slide therebetween.

The two plates 2 and B are provided with flanges, as indicated in Figure 1, and, when the blank is folded as described above, the end flanges 9 and 10 will fold over one another as indicated in Figures 1 and 5. Likewise, the plates are provided with the side flanges 11 and 12 which will also overlap, as best shown in Figure 5. hen theseflanges are bent to the overlapping position shown, they may be secured together by any suitable the i The blank may then be bent along means, such as soldering, which may bevery readily accomplished. It will be secnthat the overlapping. flanges lie substantially at. right angles to the plates, and form sides of. the recess within which a slide may be disposed.

In order to maintain a slide in position in the holder, 1 *rn'ovide a spring 13, preferablyof the hairpin typo shown. and which has one leg 1e: adapted to be inserted .between the flanges 9 and 10. The other leg 15 may he conveniently.bent into the form shown, so as to project into the holder a suiiicient distance to resiliently maintain a slide in contact with the side 8. This spring is inserted in position before the flanges 9 and 10 are secured togetl'ier, and then. it will be evident that the spring is securely held in position.

One of the advantages of the above construction is that the holder may be made from one piece of sheet material at a minimum of expense for material and labor. The slide received in the holder may be viewed through either of the apertures t or 5, or the matter on the slide may be projected by use of a projector of usual construction.

Another advantage of this type of coin struction is that the slide in the holder may be inserted and removed from one side only, and it isheld resiliently in position so as to make the danger of accidental movement very slight.

It is common practice to mount slide hold.- ers upon a conveyor, so that they will be brought one by one into position for projection upon a screen, and it is customary to mount the lengthwise of the conveyor. llherefore, by inserting and removing the slide from one of the longer sides of the holder, the danger of the slide-falling out is minimized. The slides and holders, as they pass over a roller or the like during movement of the con veyor, are tipped lengthwise of the slides and oftentimes the slides fall out of the holders. This annoyance is avoided'by my construction.

I am, of course, aware that various changes in detail may be made without departing from the scope of my invention, andI therefore do not intend to limit myself except by the appended claims,

I claim:

slides with their long dimension (all v "to bring said 7 to'each other said plates each having overlapplng flanges s ,r-in securedtbetween the flan es alon one b V a a lVA slide holder comprising two plates formed of one piece of material folded over plates substantially parallel to receive a slide therebetwecn,

along certain of their edges and disposed substantially at right angles to said plates, and means arecess adapted to receive formed of one piece of material folded over to bring said plates substantially parallel to each other to receiveaslide therebetween, said plates having overlapping flanges along certain of th'eir'edges, means for securing said flanges together to form sides, and a for securing said flanges together to form sides of a slide therein. r r V 2. A slide holder comprising two plates to each other to receive a slide therehetween and a spring disposed between said plates and adapted to urge a slide against the side of the holder formed by said foldi 4. In combination, a slide holder formed of two plates adapted to receive a slide therebetwecn, said plates having overlapping flanges along one edge to form a side of the holder, and a hairpin spring having one leg disposed between said flanges and the other extending into the space between said plates.

5. A slide holder comprising two plates substantially parallel to each other to re ceive a slide therebetween, said plates eaeh having overlapping flanges along certain ot their edges and disposed substantially at right angles to said plates, and a, hairpin spring having one leg disposed between said flanges and the other extending into the space between said plates.

In testimony whereof, I have signature to this specification.

\VILFRED T. BIRDSALL.

atlixed my 

